| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.tinkerpop.gremlin.structure.io.binary.types; |
| |
| import org.apache.commons.configuration2.ConfigurationConverter; |
| import org.apache.commons.configuration2.MapConfiguration; |
| import org.apache.tinkerpop.gremlin.structure.io.binary.DataType; |
| import org.apache.tinkerpop.gremlin.structure.io.binary.GraphBinaryReader; |
| import org.apache.tinkerpop.gremlin.structure.io.binary.GraphBinaryWriter; |
| import org.apache.tinkerpop.gremlin.process.traversal.Traversal; |
| import org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy; |
| import org.apache.tinkerpop.gremlin.process.traversal.strategy.TraversalStrategyProxy; |
| import org.apache.tinkerpop.gremlin.structure.io.Buffer; |
| |
| import java.io.IOException; |
| import java.util.LinkedHashMap; |
| import java.util.Map; |
| |
| /** |
| * @author Stephen Mallette (http://stephen.genoprime.com) |
| */ |
| public class TraversalStrategySerializer extends SimpleTypeSerializer<TraversalStrategy> { |
| |
| public TraversalStrategySerializer() { |
| super(DataType.TRAVERSALSTRATEGY); |
| } |
| |
| @Override |
| protected TraversalStrategy readValue(final Buffer buffer, final GraphBinaryReader context) throws IOException { |
| final Class<TraversalStrategy> clazz = context.readValue(buffer, Class.class, false); |
| final Map config = context.readValue(buffer, Map.class, false); |
| |
| return new TraversalStrategyProxy(clazz, new MapConfiguration(config)); |
| } |
| |
| @Override |
| protected void writeValue(final TraversalStrategy value, final Buffer buffer, final GraphBinaryWriter context) throws IOException { |
| context.writeValue(value.getClass(), buffer, false); |
| context.writeValue(translateToBytecode(ConfigurationConverter.getMap(value.getConfiguration())), buffer, false); |
| } |
| |
| private static Map<Object,Object> translateToBytecode(final Map<Object,Object> conf) { |
| final Map<Object,Object> newConf = new LinkedHashMap<>(conf.size()); |
| conf.entrySet().forEach(entry -> { |
| if (entry.getValue() instanceof Traversal) |
| newConf.put(entry.getKey(), ((Traversal) entry.getValue()).asAdmin().getBytecode()); |
| else |
| newConf.put(entry.getKey(), entry.getValue()); |
| }); |
| return newConf; |
| } |
| } |